Greenhouse construction : a complete manual on the building, heating, ventilating and arrangement of greenhouses, and the construction of hotbeds, frames and plant pits . way into the wood, and, unless drivenhome, is readily detaclied. It is also more conspicuousthan the wire brad, and is a slight hindrance to thepainting. Two of these brads are used to hold the lowercorners of the glass down in place, and two others areplaced about an eighth of an incli from the upper edge,where they serve to hold the pane in ])lace and to keepthe pane above from slipping down. Large panes requiretwo other br

Greenhouse construction : a complete manual on the building, heating, ventilating and arrangement of greenhouses, and the construction of hotbeds, frames and plant pits . way into the wood, and, unless drivenhome, is readily detaclied. It is also more conspicuousthan the wire brad, and is a slight hindrance to thepainting. Two of these brads are used to hold the lowercorners of the glass down in place, and two others areplaced about an eighth of an incli from the upper edge,where they serve to hold the pane in ])lace and to keepthe pane above from slipping down. Large panes requiretwo other br Stock Photo
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The Reading Room / Alamy Stock Photo

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2AWEH4X

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7.2 MB (151.6 KB Compressed download)

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1295 x 1930 px | 21.9 x 32.7 cm | 8.6 x 12.9 inches | 150dpi

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Greenhouse construction : a complete manual on the building, heating, ventilating and arrangement of greenhouses, and the construction of hotbeds, frames and plant pits . way into the wood, and, unless drivenhome, is readily detaclied. It is also more conspicuousthan the wire brad, and is a slight hindrance to thepainting. Two of these brads are used to hold the lowercorners of the glass down in place, and two others areplaced about an eighth of an incli from the upper edge, where they serve to hold the pane in ])lace and to keepthe pane above from slipping down. Large panes requiretwo other brads in the center. Of the various jtoints used for glazing, none is bet-ter than the zinc triangle, No. 000 (Fig. 37 C). Whilethe smaller sizes may be used for thesmall panes of glass, or for house win-dow sash, where the putty is on theoutside, they are not large enough forlarge greenliouse glass. One of thesepoints is placed at each of the lowercoiiicrs of the panes, with one anglela])ping over the edge. After drivingit in, this angle is bent down over theedge of the jiane so that it cannot slipdown. Two other points are used inthe middle of the panes. The dia-. FIG. 37, GLAZING IoiNTS. ^^^y, ^, | points (Fig. 37 D) are driven invery Iapidly with a machine, but are rather small forlarge panes, except when the glass is butted. Anotherpoint that is sometimes used is a double-pointed carpettack. This holds the glass firmly in place, but it is notparticularly ornamental. 63 GltEENHOUSE COiTSTRUCTION. Van Reypcrs glazing point (Fig. 3? E) differs fromthe above in being bout in the center, so as to better fitthe lower edge of the pane, and to this extent it seemsto be an improvement. Eames glazing j^oint (Fig. 37F) is double pointed, and is designed to both hold thepanes down in place and to keep them from slipping, and it successfully accomplishes it. Ives point (Fig.37 6) has a single point, with one corner bent to preventthe slipping of the pane. It is rather thick, and as ittears